| 摘要 |
An air brake monitoring apparatus (20) is for use in indicating the wear condition of brakes on an air braking system in a vehicle having a plurality of brakes. The air brake monitoring apparatus comprises an equal plurality of magnets (50), and a mount for respectively operatively mounting each magnet on a selected one of the brake clevis rods (32) and the air cylinder housing (28) in fixed relation thereto. The air brake monitoring apparatus also comprises an equal plurality of sensor units (70) and a mount (80) for respectively operatively mounting each sensor unit on the other one of the brake clevis rods and the air cylinder housing in fixed relation thereto, each sensor unit having a second plurality of magnetically responsive sensor elements mounted therein for sensing the relative longitudinal position of the magnet relative to a respective sensor unit, when the magnets and the sensor units are mounted in place, such that each of the magnetically responsive sensor element produces an electrical signal in response to the relative longitudinal position of the respective magnet. An indicator is mounted on the truck and operatively connected to the sensor units for receiving the electrical signals therefrom and providing an operator perceptible indication corresponding to the received signals, and indicative of the wear condition of the brakes. |
